Our distances are not driving distances, but are calculated as a 'straight-line' distance. A straight line distance ignores things like rivers, canyons, lakes, et cetera - it's truly a line from Point A (ie- Sandy Grove) to Point B.Our distance measurements begin at a specific point in Sandy Grove. The point we use is located at these GPS coordinates - Latitude: 35.7901, Longitude: -80.2159 In this case, the coordinates for Sandy Grove have been provided by the Geographic Names Information System (GNIS).